Steps To Join ZeroMax PKO
1.) You must have Top/PKO client
2.) Download ZeroMax patch here
3.) Download iteminfo.txt & iteminfo.bin at
4.) Patch the ThunderPKO_Full_Patch.rar into your TOP/PKO folder and then copy and replace the iteminfo.txt & iteminfo.bin into your TOP/PKO folder TOP/Scripts/Table.
5.) Go to ZeroMax website at and register your account.
6.) Look for the ChangeIP.exe in your TOP folder where you extracted the patch and change them accordingly:

Server: ZeroMax
Isle: ZeroMax
IP: zeromax.servegame.com

then click Apply button.
7.) Look for Start.bat in your TOP folder to launch the game and you're good to go!